import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/login'
import Home from '../components/home'
import Welcome from '../components/welcome'
import Users from '../components/user/User'
import Rights from '../components/power/Rights'
import Roles from '../components/power/Roles'
import Cate from '../components/goods/Cate'
import Params from '../components/goods/Params'
import Goods from '../components/goods/List'
import Add from '../components/goods/Add'
import Order from '../components/order/Order'
import Report from '../components/repors/Reports'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: Users },
      { path: '/rights', component: Rights },
      { path: '/roles', component: Roles },
      { path: '/categories', component: Cate },
      { path: '/params', component: Params },
      { path: '/goods', component: Goods },
      { path: '/goods/add', component: Add },
      { path: '/orders', component: Order },
      { path: '/reports', component: Report }
    ]
  }
]

const router = new VueRouter({
  routes
})

// 导航守卫

// 总结：有token放行，没有则跳转到login

// to 将要访问的地址
// from 将要访问地址之前的地址
router.beforeEach((to, from, next) => {
  // path地址为login直接放行
  if (to.path === '/login') return next()
  // 得到token
  const token = window.sessionStorage.getItem('token')
  // token为true放行，为false则跳转到login
  if (!token) return next('/login')// 没有token则跳转到login，有则放行
  next()
})

export default router
